JP7326224B2 - Branches and leaves collection device and work machine - Google Patents

Description

TECHNICAL FIELD The present invention relates to a branch/leaf collecting device for collecting branches and leaves, and a working machine provided with the same.

Conventionally, the work machine disclosed in Patent Document 1 includes a traveling vehicle, a driver's seat provided in the traveling vehicle, an operating device arranged around the driver's seat for operating the traveling vehicle, and a front portion of the traveling vehicle. a branch and leaf collection device for collecting branches and leaves, wherein the branch and leaf collection device has a plurality of long forks protruding forward arranged side by side at appropriate intervals; A comb-shaped branch fork part that is disposed between the long fork and the long fork and scoops up branches and leaves, and a branch fork part that stands above the rear end part of the branch fork part and is approximately the lateral width of the branch fork part. and a branch and leaf receiving portion having the same width and made of a mesh-like or transparent member.

JP 2013-158336 A

In the working machine disclosed in Patent Document 1, since branches and leaves are scooped up with a long fork and a short fork, even relatively short branches and leaves can be easily collected.
However, in the work machine of Patent Document 1, the range and direction in which branches and leaves can be collected at one time depends on the length and orientation of the branch forks in the width direction. There was a problem that branches and leaves could not be collected accurately depending on the working environment.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a work machine that can flexibly collect branches and leaves without being affected by the environment in which the branches and leaves are collected. and

A work machine according to an aspect of the present invention includes a traveling vehicle, a driver's seat provided in the traveling vehicle, an operating device arranged around the driver's seat for operating the traveling vehicle, and collecting branches and leaves as the traveling vehicle moves forward. a branch/leaf collecting device comprising: a frame portion; a plurality of branch/leaf fork portions arranged separately in the width direction and extending downward from the frame portion; a mounting bracket for supporting the frame; and a changing mechanism capable of changing the longitudinal and/or widthwise positional relationship between the plurality of branch forks and the traveling vehicle in a state where the plurality of branch forks can collect branches and leaves. , wherein the frame portion includes a first support member that supports the plurality of branch fork portions separated in the width direction, and a plurality of branch fork portions different from the first support member among the plurality of branch fork portions. are spaced apart in the width direction and have a first support member and a second support member spaced apart in the front-rear direction of the traveling vehicle, and the changing mechanism attaches the first support member to the mounting bracket The second support member is slid to one side in the width direction with respect to the mounting bracket, and the length from one side to the other side in the width direction of the plurality of leaf fork portions is determined. It has a switching mechanism to change .
A work machine according to an aspect of the present invention includes a traveling vehicle, a driver's seat provided in the traveling vehicle, an operating device arranged around the driver's seat for operating the traveling vehicle, and collecting branches and leaves as the traveling vehicle moves forward. a branch/leaf collecting device comprising: a frame portion; a plurality of branch/leaf fork portions arranged separately in the width direction and extending downward from the frame portion; a mounting bracket for supporting the frame; and a changing mechanism capable of changing the longitudinal and/or widthwise positional relationship between the plurality of branch forks and the traveling vehicle in a state where the plurality of branch forks can collect branches and leaves. , and the changing mechanism has a rotating portion that rotates the frame portion around the rotation axis extending in the vertical direction with respect to the mounting bracket.

Further, the change mechanism has an offset mechanism that causes the frame portion to slide in the width direction with respect to the mounting bracket and offsets the plurality of branch fork portions in the width direction with respect to the traveling vehicle.

Further, the frame portion includes a first support member that supports the plurality of branch fork portions separated in the width direction, and a plurality of the branch fork portions that are different from the first support member among the plurality of branch fork portions in the width direction. and a second support member arranged apart from the first support member in the front-rear direction of the traveling vehicle, and the changing mechanism moves the first support member in the width direction with respect to the mounting bracket. and the second support member is slid to the other side in the width direction with respect to the mounting bracket to change the length from one side to the other side in the width direction of the plurality of branch forks have a mechanism.

Further, the changing mechanism includes an extension collecting portion having an extension frame and a plurality of extension fork portions arranged separately in the width direction and extending downward from the extension frame. It has a detachable attachment on one side or the other.
Further, the changing mechanism has a rotating portion that rotates the frame portion about a rotation axis that extends vertically with respect to the traveling vehicle.
In addition, the foliage collecting device has an elevating device that supports the frame so that it can be lifted with respect to the mounting bracket.

According to the working machine, many branches and leaves can be collected.

It is a left view of a working machine. It is a top view of a working machine. It is a left view which shows the frame structure (body frame) of a working machine. Fig. 2 is a plan view showing the frame structure (body frame) of the working machine; Fig. 3 is a left side view showing the foliage collecting device and the front portion of the traveling vehicle; It is a top view which shows a foliage collection apparatus. It is a left view which shows raising/lowering of a raising/lowering apparatus. It is the figure which added a worker to FIG. It is a left view which shows the raising/lowering of the raising/lowering apparatus in a modification. It is a figure which shows an offset mechanism as a change mechanism. It is a figure which shows the offset mechanism of a 1st modification as a change mechanism. It is a figure which shows the offset mechanism of a 2nd modification as a change mechanism. It is a figure which shows the offset mechanism of a 3rd modification as a change mechanism. Fig. 1 shows a fixture as a change mechanism; Figure 2 shows a fixture as a change mechanism; Fig. 1 shows a switching mechanism as a changing mechanism; Fig. 2 shows a switching mechanism as a changing mechanism; It is a figure which shows a rotation part as a change mechanism.

A working machine 1 of the present invention will be described below with reference to the drawings. In the embodiment of the present invention, the front side of the operator (driver) OP seated in the driver's seat 4 of the working machine 1 (direction of arrow A1 in FIG. A2 direction) is the rear, the left side of the operator OP (the arrow B1 direction in FIG. 2 etc.) is the left side, and the right side of the operator OP (the arrow B2 direction in FIG. 2 etc.) is the right side. Also, the horizontal direction perpendicular to the front-rear direction will be described as the width direction. In terms of dimensions, W denotes the length (width) in the width direction, and T denotes the length (height) in the vertical direction.

As shown in FIG. 1 , the working machine 1 includes a traveling vehicle 2 , a driver's seat 4 , an operating device 10 and a foliage collecting device 30 . The traveling vehicle 2 is a vehicle body that can travel, and is provided with a traveling device 5 that imparts a propulsive force to the vehicle body. The traveling device 5 is a device that rotates and has a left front wheel 5FL, a right front wheel 5FR, a left rear wheel 5RL, and a right rear wheel 5RR.

As shown in FIGS. 1 and 2, the traveling vehicle 2 is provided with a prime mover 8 . In the case of this embodiment, the prime mover 8 is an engine, but may be an electric motor driven by electric power. The prime mover 8 is provided at the rear portion of the traveling vehicle 2 . A motor cover 20 covers the top and sides of the motor 8 .
The driver's seat 4 is provided in the traveling vehicle 2 and arranged in front of the prime mover 8 . The driver's seat 4 has a seat portion 4a and a backrest portion 4b. As shown in FIG. 1 , the seat portion 4 a of the driver's seat 4 overlaps the motor 8 in the height direction (vertical direction) of the traveling vehicle 2 . The upper surface (seat surface) of the seat portion 4 a of the driver's seat 4 is located below the upper end portion of the motor 8 .

The operation device 10 is a device arranged around the driver's seat 4 to operate the traveling vehicle 2 , and is arranged in front of the driver's seat 4 . The operating device 10 includes a control stand 10a, a steering device (steering handle) 10b, an accelerator pedal (running pedal) 10c, and a brake pedal 10d.
As shown in FIGS. 1 and 2, the steering device 10b is supported by the control stand 10a. The steering device 10b overlaps the front wheels 5FL and 5FR in the longitudinal direction. The accelerator pedal 10c is provided on the side (right side) of the control stand 10a. accelerator pedal 10c
includes a forward pedal 10c1 and a reverse pedal 10c2. The forward pedal 10c1 is arranged in front of the reverse pedal 10c2. The brake pedal 10d is provided on the side (left side) of the control stand 10a.

As shown in FIGS. 1 and 2, the front of the accelerator pedal 10c and the front of the brake pedal 10d are not blocked by a cover or the like and are open. Therefore, the operator OP seated in the driver's seat 4 can see the front direction of the accelerator pedal 10c and the brake pedal 10d (forward and downward of the traveling vehicle 2) from the front of the traveling vehicle 2 (see FIG. 7). A front cover 21 covers the front of the control platform 10a. As shown in FIG. 1, the upper surface of the front cover 21 is inclined downward toward the front in a side view. Further, as shown in FIG. 2, the width W1 of the front cover 21 is narrower than the width W2 of the driver's seat 4. As shown in FIG.

As shown in FIGS. 3 and 4, the traveling vehicle 2 includes a body frame 11. As shown in FIGS. The body frame 11 has a base frame 11A, a front frame 11B, a rear frame 11C, a connecting member 11D and a support plate 11E. The connecting member 11D includes a first connecting member 11D1, a second connecting member 11D2, a third connecting member 11D3, and a fourth connecting member 11D4.
As shown in FIG. 4, the base frame 11A includes a first base frame 11AL and a second base frame 11AR. The first base frame 11AL is arranged in the lower left portion of the traveling vehicle 2 and extends in the front-rear direction. The second base frame 11AR is arranged in the lower right portion of the traveling vehicle 2 and extends in the front-rear direction.

As shown in FIG. 4, the front frame 11B is formed in a C shape in plan view. One end of the front frame 11B is connected to the front part of the left side surface of the first base frame 11AL. The other end of the front frame 11B is connected to the front part of the right side surface of the second base frame 11AR. The front frame 11B rises forward and upward from the base frame 11A and then extends forward beyond the front end of the base frame 11A. A front end portion of the first base frame 11AL and a front portion of the front frame 11B are connected by a first connecting member 11D1. The front end portion of the second base frame 11AR and the front portion of the front frame 11B are connected by a second connecting member 11D2.

As shown in FIG. 3, the first connecting member 11D1 extends forward from the front end of the first base frame 11AL, then bends and extends upward. The second connecting member 11D2 extends forward from the front end of the second base frame 11AR, then bends and extends upward.
As shown in FIG. 4, the rear frame 11C has a rear portion 11CB, a left portion 11CL, and a right portion 11CR. The rear portion 11CB is arranged at the rear portion of the traveling vehicle 2 and extends in the width direction. The left part 11CL is bent forward from the left end of the rear part 11CB. The right portion 11CR is bent forward from the right end of the rear portion 11CB. The rear frame 11C has a U shape in plan view. A front end portion of the left portion 11CL is connected to a front-rear middle portion of the first base frame 11AL by a third connecting member 11D3. A front end portion of the right portion 11CR is connected to a front-rear middle portion of the second base frame 11AR by a fourth connecting member 11D4. The rear portion of the left portion 11CL and the rear portion of the right portion 11CR are connected by a support plate 11E. The support plate 11E supports the lower part of the prime mover 8. As shown in FIG.

As shown in FIGS. 1 and 2, the working machine 1A has footrests (first footrest 12 and second footrest 13). The first footrests 12 are located on both sides (left and right sides) of the control platform 10a. Also, the first footrest portion 12 is positioned on both sides (left and right sides) of the front cover 21 . The first footrest portion 12 extends forward of the steering device 10b. The first footrest portion 12 is arranged above the front wheels 5FL and 5FR. The left end of the front wheel 5FL is positioned to the left of the left end of the first footrest portion 12 on the left side. The right end of the front wheel 5FR is positioned to the right of the right end of the first footrest portion 12 on the right side.

As shown in FIG. 2, the front of the first footrest portion 12 is open. In other words, the first footrest portion 12 can be visually recognized from the front of the traveling vehicle 2 (see FIG. 7). The second footrest portion 13 is provided behind the first footrest portion 12 . The second footrest portion 13 is arranged between the control table 10 a and the driver's seat 4 .
As shown in FIGS. 1 and 3 , the traveling vehicle 2 is provided with a mower 15 driven by the power of the prime mover 8 . The mowing device 15 is provided below the traveling vehicle 2 . The mowing device 15 is arranged below the driver's seat 4 of the traveling vehicle 2 . The mowing device 15 is attached to the lower portion of the base frame 11A. The grass cutting device 15 has a vertically extending rotating shaft 15a and a cutting blade 15b attached to the rotating shaft 15a. A cutting blade cover 16 covers the top and sides of the cutting blade 15b.

The foliage collecting device 30 is a device for collecting foliage E scattered in a field G after pruning of fruit trees or the like. Branches and leaves E include at least any of branches with leaves remaining, branches without leaves, and leaves only. The foliage collecting device 30 is mounted on the front or rear part of the traveling vehicle 2, and collects the foliage E as the traveling vehicle 2 advances, thereby performing the foliage collection work. In this embodiment, the foliage collecting device 30 is attached to the front portion of the traveling vehicle 2 (hereinafter, the foliage collecting device 30 attached to the front portion of the traveling vehicle 2 is referred to as the "foliage collecting device 30A"). As shown in FIG. 2, the widthwise length W3 of the foliage collecting device 30A substantially matches the widthwise length W4 of the traveling vehicle 2, and as shown in FIG. The height T1 of the foliage collecting device 30A is lower than the height T2 of the traveling vehicle 2 (the height of the motor cover 20).

As shown in FIGS. 1, 2, and 5A to 7, the branch/leaf collection device 30A includes a frame portion 31, a plurality of branch/leaf fork portions 40, a mounting bracket 51A, and an elevating device 50A. . The frame portion 31 is a frame that supports the structures and parts of the branch/leaf collecting device 30A, and supports, for example, the plurality of branch/leaf fork portions 40 with respect to the lifting device 50A. In this embodiment, the frame portion 31 includes a horizontal member 32, a pair of vertical members 33, a first support member 34, and a second support member 35. As shown in FIG.

As shown in FIGS. 2 and 5B, the horizontal member 32 is a long member that constitutes the base end side (rear side) of the frame portion 31 and extends in the width direction. One end (left end) of the horizontal member 32 substantially coincides with one side (left side) of the traveling vehicle 2 in the width direction. On the other hand, the other end (right end) of the horizontal member 32 substantially coincides with the other side (right side) of the traveling vehicle 2 in the width direction.
As shown in FIGS. 2 and 5B, the pair of vertical members 33 are members that form the proximal end side (rear side) to the distal end side (front side) of the frame portion 31 and extend in the front-rear direction. The pair of vertical members 33 are arranged to be spaced apart in the width direction. The vertical member 33L on one side (left side) in the width direction of the pair of vertical members 33 is arranged on the left side of the horizontal member 32, and the vertical member 33L on the other side (right side) in the width direction of the pair of vertical members 33 is arranged. 33R is located on the right side of the cross member 32 . The rear ends of the pair of vertical members 33 are connected to the horizontal member 32 by fastening members such as bolts, and extend forward from the lower side of the horizontal member 32 .

As shown in FIGS. 1, 2, and 5A to 7, the first support member 34 and the second support member 35 are portions to which a plurality of leaf fork portions 40 are attached, and are spaced apart in the front-rear direction. ing. The first support member 34 and the second support member 35 are long plate-like members extending in the width direction. One end (left end) of the first support member 34 and the second support member 35 substantially coincides with one side (left side) of the traveling vehicle 2 in the width direction. On the other hand, the other end (right end) of the first support member 34 and the second support member 35 substantially coincides with the other side (right side) of the traveling vehicle 2 in the width direction. The first support member 34 and the second support member 35 are attached to the pair of vertical members 33 via attachment portions 36 .

As shown in FIGS. 1, 2, and 5A to 7, the attachment portion 36 has a first support member 34 and a second support member 35 separated in the front-rear direction, and the first support member 34 is connected to the second support member 35. The first support member 34 and the second support member 35 are attached to the pair of vertical members 33 so as to be positioned more forward than the vertical member 33 . More specifically, the mounting portion 36 includes a front side and a central portion in the front-rear direction of the vertical member 33L on one side (left side) in the width direction, and a front side and a central portion in the front-rear direction of the vertical member 33R on the other side (right side) in the width direction. and , respectively.

As shown in FIG. 5B, an attachment portion (first bracket) 36A attached to the front side of the left vertical member 33L and an attachment portion (second bracket) 36B attached to the front side of the right vertical member 33R are Correspondingly, the first bracket 36 A supports the left side of the first support member 34 and the second bracket 36 B supports the right side of the first support member 34 .
As shown in FIG. 5B, a mounting portion (third bracket) 36C attached to the center of the left vertical member 33L in the front-rear direction, and a mounting portion (third bracket) 36C mounted to the center of the right vertical member 33R in the front-rear direction. The third bracket 36 C supports the left side of the second support member 35 , and the fourth bracket 36 D supports the right side of the second support member 35 .

As shown in FIGS. 1 and 5A to 7, the mounting portion 36 is a member formed by bending a steel plate or the like, and has a substantially V shape with obtuse internal angles when viewed from the side. As shown in FIG. 5A , the attachment portion 36 includes a first portion 37 attached to the vertical member 33 and a second portion 37 extending in a direction away from the vertical member 33 as it moves rearward from the rear end of the vertical member 33 . a portion 38; A first support member 34 or a second support member 35 is attached and fixed to the plate surface of the second portion 38 by fastening members such as bolts and nuts. Either one of the support members 35 is supported. Specifically, the second portion 38 is coupled with the first support member 34 or the second support member 35 by fastening members such as bolts or nuts that attach the plurality of leaf forks 40 to the first support member 34 and the second support member 35 . By tightening, it is attached and fixed to the first support member 34 or the second support member 35 . Thereby, the first bracket 36A and the second bracket 36B support the first support member 34 so that the plate surface of the first support member 34 faces forward and downward. The third bracket 36C and the fourth bracket 36D support the second support member 35 so that the plate surface of the second support member 35 faces forward and downward.

As shown in FIG. 5A , the plurality of foliage forks 40 are portions that rake up foliage E of the field G as the traveling vehicle 2 moves forward. The plurality of branch and leaf fork portions 40 are relatively thin and elongated members, and in the present embodiment, are made of round pipes having a circular cross section. As shown in FIGS. 2 and 5B, the plurality of leaf fork portions 40 are arranged separately in the width direction, and extend downward from the frame portion 31 as shown in FIGS. 1 and 5A. In this embodiment, the plurality of branch fork portions 40 are arranged 16 apart in the width direction on the first support member 34 and arranged 16 apart in the width direction on the second support member 35 . The plurality of branch fork portions 40 are supported by the first support member 34 or the second support member 35, and are inclined from the frame portion 31 (the first support member 34 or the second support member 35) toward the traveling vehicle 2. . In the following description, the branch fork portion 40 supported by the first support member 34 will be described as a front fork 40F, and the branch fork portion 40 supported by the second support member 35 will be described as a rear fork 40R.

As shown in FIG. 5A, the front fork 40F has its proximal end (upper side) attached to the first support member 34, and as shown in FIG. It is arranged from one side (left side) to the other side (right side) in the width direction. In other words, the first support member 34 supports the plurality of branch fork portions 40 (front fork 40F) while being separated from each other in the width direction. One widthwise side (left side) of the front fork 40</b>F substantially coincides with one widthwise side (left side) of the traveling vehicle 2 . On the other hand, the other side (right side) of the front fork 40F in the width direction substantially coincides with the other side (right side) of the traveling vehicle 2 in the width direction.

As shown in FIG. 5B, the front forks 40F attached to the first support member 34 form a row extending in the width direction, and the tip side (lower side) of the front forks 40F is a branch and leaf collecting portion ( A first rake portion 40a) is formed. Also, the front fork 40F extends downward along the plate surface of the first support member 34 . That is, as shown in FIG. 5A, the front fork 40F is inclined downward and rearward in a direction away from the vertical member 33 as it moves rearward from the first support member 34 . The tip side (lower side) of the front fork 40F is bent downward and is substantially perpendicular to the upper surface of the field G. As shown in FIG.

As shown in FIG. 5A, the rear fork 40R has its proximal end (upper side) attached to the second support member 35, and as shown in FIG. are arranged from one side (left side) to the other side (right side) in the width direction. In other words, the second support member 35 supports the plurality of leaf fork portions 40 (rear side fork 40R) while being separated from each other in the width direction. One side (left side) in the width direction of the rear fork 40R substantially coincides with one side (left side) in the width direction of the traveling vehicle 2 . On the other hand, the other side (right side) of the rear fork 40R in the width direction substantially coincides with the other side (right side) of the traveling vehicle 2 in the width direction.

As shown in FIG. 5B, the rear forks 40R attached to the second support member 35 form a row extending in the width direction, and the tip side (lower side) of the rear forks 40R is a branch and leaf collection for raking the branches and leaves E. As shown in FIG. part (second rake part 40b). The rear fork 40R extends downward along the plate surface of the second support member 35. As shown in FIG. That is, as shown in FIG. 5A, the rear fork 40R is inclined downward and rearward in a direction away from the vertical member 33 as it moves rearward from the second support member 35 . The tip side (lower side) of the rear fork 40R is bent downward and is substantially perpendicular to the upper surface of the field G. As shown in FIG.

According to the above configuration, the plurality of branch fork portions 40 are formed in two rows separated in the front-rear direction by the front fork 40F and the rear fork 40R. Two foliage gathering portions (first rake portion 40a and second rake portion 40b) separated in the direction are formed. Therefore, the rear fork 40R can rake up the branches and leaves E that the front fork 40F cannot rake up. In other words, the rear fork 40R assists the front fork 40F in collecting branches and leaves.

The mounting bracket 51</b>A is a structure that is mounted on the traveling vehicle 2 and supports the frame portion 31 . In this embodiment, it is attached to the front portion of the traveling vehicle 2 and indirectly supports the frame portion 31 via the lifting device 50A. Specifically, the mounting bracket 51A is attached to a front mounting portion 11b formed in the front portion of the front frame 11B.
As shown in FIGS. 5A and 5B, the mounting bracket 51A has a mounted portion 52A, a connecting portion 53A, and a first support 54. As shown in FIGS. 52 A of to-be-attached parts are the parts attached to the front attachment part 11b, and are plate-shaped members arrange|positioned by the board surface facing the front-back direction. A through hole or the like is formed in the mounting portion 52A, and is detachably connected to the front mounting portion 11b by fastening members such as bolts and nuts.

As shown in FIGS. 5A and 5B , the connecting portion 53A is a portion that connects the attached portion 52A and the first support 54 . The connecting portion 53A extends forward from the upper portion of the attached portion 52A. In the present embodiment, the connecting portion 53A is composed of a pair of plate-like members separated in the width direction. A first support 54 is attached to the front portion of the connecting portion 53A.
As shown in FIGS. 5A and 5B, the first support 54 is a portion that supports the lifting frame 55A so as to be vertically swingable, and is attached to the front portion of the connecting portion 53A. The first support 54 has a first vertical wall 54a, a first support wall 54b, a second support wall 54c, and a support column 54d. The first vertical wall 54a is a plate-shaped member arranged so that the plate surface faces the front-rear direction. A front portion of the connecting portion 53A is attached to the rear surface of the first vertical wall 54a.

As shown in FIG. 5B, the first support wall 54b and the second support wall 54c are arranged in correspondence with each other in the width direction and separated from each other in the width direction. The first support wall 54b is a portion that extends forward from one side (left side) in the width direction of the first vertical wall 54a. As shown in FIG. 5A, the first support wall 54b is a vertically elongated plate-like portion having a plate surface facing the width direction, and has holes (support holes) penetrating through the upper and lower sides thereof. formed. The support hole is a hole penetrating in the width direction.

As shown in FIG. 5B, the second support wall 54c is a portion extending forward from the other widthwise side (right side) of the first vertical wall 54a. That is, the first vertical wall 54a, the first support wall 54b, and the second support wall 54c form a substantially gate shape in plan view. As shown in FIG. 5A, the second support wall 54c is a vertically elongated plate-like portion having a plate surface facing the width direction, and has holes (support holes) penetrating through the upper and lower sides thereof. formed. The support hole is a hole penetrating in the width direction.

As shown in FIG. 5B, the support column 54d is positioned at the center of the first vertical wall 54a in the width direction, extends upward from the lower side of the first vertical wall 54a, and extends upward from the lower side of the first vertical wall 54a. It is a columnar part that protrudes upward from the upper end of the As shown in FIG. 1, the height T1 of the support column 54d is lower than the height T2 of the traveling vehicle 2, and more specifically, lower than the upper end of the front cover 21. As shown in FIG. As shown in FIGS. 5A and 5B, a holding portion 54d1 extending forward is formed on the upper portion of the support column 54d. As shown in FIG. 5B, the holding portion 54d1 is formed so as to protrude from the support column 54d in a bifurcated manner, and a through hole penetrating in the width direction is formed in the holding portion 54d1. The through holes are located above the support holes formed in the first support wall 54b and the support holes formed in the second support wall 54c.

The lifting device 50A is a device that supports the frame portion 31 so as to be able to move up and down with respect to the mounting bracket 51A. The lifting device 50A can switch between a working state in which the frame portion 31 is lowered and the branches and leaves fork portion 40 performs the collection work, and a non-working state in which the frame portion 31 is raised and the branches and leaves fork portion 40 does not perform the collection work. can be done. In this embodiment, the lifting device 50A is described as being separate from the mounting bracket 51A. 51A may be included.

As shown in FIG. 2, the width W5 of the lifting device 50A is narrower than the width W2 of the driver's seat 4, and narrower than the width W1 of the front cover 21 in this embodiment. As shown in FIGS. 1, 2, and 5A to 7, the lifting device 50A has a lifting frame 55A and an electric lifting mechanism .
As shown in FIGS. 1, 2, and 5A to 7, the elevating frame 55A is a member supported by the mounting bracket 51A so as to be vertically swingable and connected to the frame portion 31. As shown in FIGS. The lift frame 55A has a second support 56, a pair of upper links 60A, a pair of lower links 61A, and a connecting shaft 62.

As shown in FIGS. 5A and 5B, the second support 56 is a portion that supports the frame portion 31 and is arranged in front of the mounting bracket 51A. As shown in FIG. 5B, the second support 56 has a second vertical wall 56a, a third support wall 56b, and a fourth support wall 56c. The second vertical wall 56a is a plate-shaped member arranged so that the plate surface faces the front-rear direction. The frame portion 31 is attached to the front surface of the second vertical wall 56a. Specifically, the widthwise central portion of the horizontal member 32 is attached to the front surface of the second vertical wall 56a.

As shown in FIG. 5B, the third support wall 56b and the fourth support wall 56c correspond in the width direction and are arranged apart in the width direction. The third support wall 56b is a portion extending rearward from one side (left side) in the width direction of the second vertical wall 56a. As shown in FIG. 5A, the third support wall 56b is a vertically elongated plate-like portion with a plate surface facing the width direction, and has holes (support holes) penetrating through the upper and lower sides thereof. formed. The support hole is a hole penetrating in the width direction.

As shown in FIG. 5B, the fourth support wall 56c is a portion extending rearward from the other widthwise side (right side) of the second vertical wall 56a. That is, the second vertical wall 56a, the third supporting wall 56b, and the fourth supporting wall 56c form a substantially gate shape in plan view. As shown in FIG. 5A, the fourth support wall 56c is a vertically elongated plate-like portion having a plate surface facing the width direction, and has holes (support holes) penetrating through the upper and lower sides thereof. formed. The support hole is a hole penetrating in the width direction.

As shown in FIGS. 5A and 5B, the pair of upper links 60A and the pair of lower links 61A extend in the front-rear direction and connect the first support 54 and the second support 56 so as to be vertically swingable. is a link. The pair of upper links 60A are arranged apart in the width direction, and are arranged on one side (left side) and the other side (right side) in the width direction above the first support 54 and above the second support 56, respectively. are vertically swingably connected. Specifically, the rear side of the left upper link 60AL is attached to the upper support hole of the first support wall 54b so as to be vertically swingable about the axis of a swing shaft extending in the width direction. On the other hand, the front side of the left upper link 60AL is attached to the upper support hole of the third support wall 56b so as to be vertically swingable about the axis of a swing shaft extending in the width direction. Further, the rear side of the right upper link 60AR is attached to the support hole on the upper side of the second support wall 54c so as to be vertically swingable about the axis of a swing shaft extending in the width direction. On the other hand, the front side of the right upper link 60AR is attached to the upper support hole of the fourth support wall 56c so as to be vertically swingable about the axis of a swing shaft extending in the width direction.

The pair of lower links 61A are arranged apart in the width direction, and are arranged on one side (left side) and the other side (right side) in the width direction, respectively, below the first support 54 and below the second support 56. and are connected so as to be vertically swingable. Specifically, the rear side of the left lower link 61AL is attached to a support hole on the lower side of the first support wall 54b so as to be vertically swingable about the axis of a swing shaft extending in the width direction. . On the other hand, the front side of the left lower link 61AL is attached to the lower support hole of the third support wall 56b so as to be vertically swingable about the axis of a swing shaft extending in the width direction. Further, the rear side of the right lower link 61AR is attached to a support hole on the lower side of the second support wall 54c so as to be vertically swingable about the axis of a swing shaft extending in the width direction. On the other hand, the front side of the right lower link 61AR is attached to the lower support hole of the fourth support wall 56c so as to be vertically swingable about the axis of the swing shaft extending in the width direction.

As shown in FIG. 5B, the connecting shaft 62 is a shaft-like member that connects the middle portions of the pair of lower links 61A. One side (left side) of the connecting shaft 62 in the width direction is connected to the central portion in the front-rear direction of the left lower link 61A. The other side (right side) of the connecting shaft 62 in the width direction is connected to the central portion of the right lower link 61A in the front-rear direction.
The electric lifting mechanism 70 is a mechanism that is operated by operating an operation tool 75 provided on the work machine 1A and swings the lifting frame 55A vertically by electric power. In the present embodiment, the electric lifting mechanism 70 is an electric cylinder 70A that performs expansion and contraction driving with supplied electric power. As shown in FIG. 5B, the electric cylinder 70A connects the upper portion of the support column 54d and the connecting shaft 62 so as to be vertically swingable, and the distance between the upper portion of the supporting column 54d and the connecting shaft 62 is , the lifting frame 55A is swung vertically. As shown in FIGS. 5A and 5B, the electric cylinder 70A is housed in a cylindrical body (cylinder tube) 71, an electric motor 73, a transmission mechanism (not shown), and the cylindrical body 71 and rotates around its axis. It has a driven ball screw (not shown) and a rod 72 that is moved axially by the rotational drive of the ball screw. The cylindrical body 71 is an elongated cylindrical member and accommodates a ball screw.

The electric motor 73 is a device that generates a driving force from supplied electric power. In this embodiment, the electric motor 73 is a stepping motor, and rotates a drive shaft (not shown) with electric power supplied from a battery (not shown) provided in the traveling vehicle 2 . Further, as shown in FIGS. 5A and 5B, the electric motor 73 is attached and fixed to the outer peripheral surface of the cylindrical body 71 . The transmission mechanism transmits the driving force generated by the electric motor 73 to the ball screw. The transmission mechanism includes, for example, a plurality of gears, etc., and performs speed change, etc. of the rotational driving force of the drive shaft. A ball screw is an elongated shaft-like member, one end of which is connected to a transmission mechanism, and the other end of which is formed with a screw groove. The rod 72 is an elongated shaft-like member, one end of which is formed with a screw hole corresponding to the screw groove of the ball screw, and the other end of which is connected to the connecting shaft 62 so as to be vertically swingable. ing. Further, the rod 72 is supported by the cylindrical body 71 so as not to rotate around the axis, and the rod 72 slides due to the rotation of the ball screw, thereby expanding and contracting the electric cylinder 70A.

That is, for example, when the electric motor 73 rotates forward, the driving force of the electric motor 73 is transmitted to the ball screw via the transmission mechanism, and the rotation of the ball screw moves the rod 72 to the other end side. Cylinder 70A extends. On the other hand, when the electric motor 73 rotates in the reverse direction, the driving force of the electric motor 73 is transmitted to the ball screw via the transmission mechanism, and the rod 72 moves to one end side due to the rotational driving of the ball screw, thereby causing the electric cylinder 70A to rotate. Shrink.

The operation tool 75 is a device for operating the electric lifting mechanism 70, and is arranged in front of the driver's seat 4 as shown in FIG. 5A. The operation tool 75 arbitrarily operates the rotation angle of the electric motor 73 by changing the pulse signal input to the electric motor 73 . Specifically, the operation tool 75 is attached to the rear upper portion of the front cover 21 and arranged above the control platform 10a.
The operating tool 75 is connected to the electric motor 73 via the control device 76 . The control device 76 is a device composed of an electric/electronic circuit, a program stored in a CPU or the like. The control device 76 changes the pulse signal input to the electric motor 73 based on the signal input from the operation tool 75 .

It should be noted that the electric lifting mechanism 70 is not limited to the above structure as long as it can move the frame portion 31 up and down by being driven by electric power.
Mainly referring to FIG. 6, the lifting and lowering of the frame portion 31 by the lifting device 50A, that is, the rocking motion of the lifting frame 55A by the electric lifting mechanism 70 will be described below. First, the case where the lifting device 50A lowers the frame portion 31 to switch to the working state will be described. Change the pulse signal. The electric motor 73 is rotationally driven (forward rotation) by a pulse signal input from the control device 76, and the transmission mechanism rotationally drives the ball screw about its axis. When the ball screw is rotationally driven, the screw groove and screw hole formed in the ball screw move the rod 72 toward the other end, thereby extending the electric cylinder 70A as shown in the upper diagram of FIG. When the electric cylinder 70A is extended, the distance between the upper part of the support column 54d and the connecting shaft 62 is extended, and the connecting shaft 62 is moved downward.

As a result, the pair of lower links 61A are pushed downward around the pivot shaft of the first support 54 (in the left side view, counterclockwise as shown in the upper diagram of FIG. 6). The second support 56 moves downward in accordance with the downward movement of the lower link 61A. Further, by the downward movement of the second support 56, the pair of upper links 60A maintains parallelism with the pair of lower links 61A around the pivot axis of the first support 54 (in the left side view, the 6) is pushed downward. Therefore, the second support 56 moves downward while maintaining parallelism with the first support 54, the frame portion 31 and the plurality of leaf fork portions 40 move downward, and the lifting device 50A is switched to the working state. be replaced.

Next, a case where the lifting device 50A lifts the frame portion 31 and switches to the non-working state will be described. Change the input pulse signal. The electric motor 73 is rotationally driven (reversely rotated) by a pulse signal input from the control device 76, and the ball screw is rotationally driven to move the rod 72 to one end side, thereby causing the electric motor 73 to move as shown in the lower diagram of FIG. Cylinder 70A contracts. When the electric cylinder 70A is contracted, the distance between the upper part of the support column 54d and the connecting shaft 62 is reduced, and the connecting shaft 62 is moved upward.

As a result, the pair of lower links 61A are pushed upward around the pivot axis of the first support 54 (clockwise as shown in the lower diagram of FIG. 6 when viewed from the left side). The second support 56 moves upward in accordance with the upward movement of 61A. Further, by the upward movement of the second support 56, the pair of upper links 60A maintains parallelism with the pair of lower links 61A around the pivot axis of the first support 54 (in the left side view, the 6) is pushed upward. Therefore, the second support 56 moves upward while maintaining parallelism with the first support 54, the frame portion 31 and the plurality of leaf fork portions 40 move upward, and the lifting device 50A is put into a non-operating state. switch.

As indicated by dashed arrows in FIG. 7 , the operator OP can visually recognize the plurality of branch forks 40 while sitting on the driver's seat 4 . In particular, the operator OP can visually recognize the upper side of the plurality of branch forks 40 from the open portions in front of the accelerator pedal 10c and in front of the brake pedal 10d while sitting on the driver's seat 4. Accordingly, the operator OP can visually recognize the amount of foliage E collected by the plurality of foliage fork units 40, and can easily grasp the work situation. Furthermore, as shown in FIG. 1, the width of the lifting device 50A is narrower than the width of the driver's seat 4, and in this embodiment, it is narrower than the width of the front cover 21. 40 visibility can be suppressed.

In the above-described embodiment, the lifting device 50A includes the electric lifting mechanism 70, and the electric lifting mechanism 70 vertically swings the lifting frame 55A by electric power. , the lifting frame 55A may be vertically swung. For example, as shown in FIG. 8, the lifting device 50A may be configured to include an operable lever portion 95 and swing the lifting frame 55A in the vertical direction according to the operation of the lever portion 95. .

Specifically, as shown in FIG. 8, the lever portion 95 extends from the lift frame 55A toward the driver's seat 4, and is capable of vertically swinging the lift frame 55A. A tip end 95a of the lever portion 95 is pivotably connected to the lift frame 55A, and the lift frame 55A can be pivoted vertically by swinging about an axis extending in the width direction. Specifically, the lever portion 95 extends rearward from the lift frame 55A side and extends toward the driver's seat 4 away from the traveling vehicle 2 . In this embodiment, the lever portion 95 is bent upward at a midway portion 95b, and has, for example, a substantially inverted V shape when viewed from the side. As a result, the lever portion 95 can avoid contact with the step 12 in the state of swinging downward.

The tip end side 95a, the intermediate portion 95b, and the base end side 95c of the lever portion 95 will be described in detail. The elongated hole is a hole penetrating in the width direction, and is swingably connected to a bracket provided on the upper portion of the connecting shaft 62 by a swing shaft. A middle portion 95b of the lever portion 95 is attached to the rear of the lifting device 50A so as to be capable of swinging about an axis extending in the width direction. In this embodiment, the intermediate portion 95b of the lever portion 95 is attached to the connecting portion 53A of the mounting bracket 51A so as to be able to swing. A base end side 95c of the lever portion 95 extends from the middle portion 95b through above the step 12 toward the driver's seat 4, and is provided with a grip 96 to be gripped by the operator OP. Preferably, the length between the middle portion 95b and the proximal side 95c of the lever portion 95 is longer than the length between the distal side 95a and the middle portion 95b. Thereby, the operator OP can operate the lever portion 95 with a relatively small force.

It should be noted that the lever portion 95 only needs to be able to swing the lifting frame 55A in the vertical direction, and its configuration is not limited to the above-described configuration. However, it may be curved along the shape of the step 12 when viewed from the side. Further, the lever portion 95 may have a lock mechanism capable of switching between regulating and permitting swinging of the lever portion 95 . In such a case, the manipulator 75 of the locking mechanism is provided on the grip 96 .

Mainly referring to FIG. 8, the elevation of the frame portion 31 by the elevation device 50A, that is, the rocking of the elevation frame 55A by the lever portion 95 will be described below. First, a case where the lifting device 50A raises the frame portion 31 to switch to the working state will be described. is pushed down around the axis of the swing shaft (clockwise as shown in the upper diagram of FIG. 8 when viewed from the left side), and the pair of lower links 61A are pushed down around the swing shaft of the first support 54. It is pushed downward around the center (in the left side view, counterclockwise as shown in the upper diagram of FIG. 8). As a result, the second support 56 moves downward in accordance with the downward movement of the pair of lower links 61A. Further, by the downward movement of the second support 56, the pair of upper links 60A maintains parallelism with the pair of lower links 61A around the pivot axis of the first support 54 (in the left side view, the 8) is pushed downward. Therefore, the second support 56 moves downward while maintaining parallelism with the first support 54, the frame portion 31 and the plurality of leaf fork portions 40 move downward, and the lifting device 50A is switched to the working state. be replaced.

Next, the case where the lifting device 50A raises the frame portion 31 to switch to the non-working state will be described. The tip end of the portion 95 is pushed up around the pivot shaft (clockwise as shown in the lower diagram of FIG. 8 when viewed from the left side), and the pair of lower links 61A are moved around the pivot shaft of the first support 54. It is pushed upward around the axis (clockwise as shown in the lower diagram of FIG. 8 when viewed from the left side). As a result, the second support 56 moves upward in accordance with the upward movement of the pair of lower links 61A. Further, by the upward movement of the second support 56, the pair of upper links 60A maintains parallelism with the pair of lower links 61A around the pivot axis of the first support 54 (in the left side view, the 8) is pushed upward. Therefore, the second support 56 moves upward while maintaining parallelism with the first support 54, the frame portion 31 and the plurality of branch forks are moved upward, and the lifting device 50A is switched to the non-operating state. .

As shown in FIG. 9A, the foliage collector 30A has a change mechanism 100. As shown in FIG. The changing mechanism 100 is a structure capable of changing the horizontal positional relationship between the branch/leaf collecting device 30A and the traveling vehicle 2 . Specifically, the changing mechanism 100 changes the horizontal positional relationship between at least a plurality of branch fork portions 40 of the branch collecting device 30A and the traveling vehicle 2 . For example, as shown in FIG. 9A , the changing mechanism 100 has an offset mechanism 101 that offsets the plurality of branch fork portions 40 in the width direction with respect to the traveling vehicle 2 . For convenience of explanation, the offset mechanism 101 shown in FIG. 9A will be described below as the first offset mechanism 111 .

The first offset mechanism 111 changes the position of the horizontal member 32 with respect to the second vertical wall 56 a to offset the plurality of leaf fork portions 40 in the width direction with respect to the traveling vehicle 2 . The first offset mechanism 111 includes, for example, a plurality of first mounting holes 111a arranged side by side in the width direction of the horizontal member 32, a plurality of second mounting holes 111b formed in the second vertical wall 56a, and a first mounting hole 111a. and a fastener 111c inserted through the hole 111a and the second mounting hole 111b.

The plurality of first attachment holes 111a penetrate, for example, in the front-rear direction, and are formed at predetermined intervals from the central portion of the horizontal member 32 to one side and the other side in the width direction. In this embodiment, 16 first mounting holes 111a are formed in the horizontal member 32 as shown in FIG. 9A.
The plurality of second attachment holes 111b penetrate in the same direction as the penetration direction of the first attachment holes 111a. are formed at predetermined intervals over one side and the other side. In this embodiment, two second mounting holes 111b are formed in the second vertical wall 56a as shown in FIG. 9A. A screw groove is formed in the second mounting hole 111b.

The fastener 111c includes a bolt or nut, for example, and is inserted through the first mounting hole 111a and the second mounting hole 111b to fix the horizontal member 32 and the second vertical wall 56a. The number of fasteners 111c matches the smaller of the first mounting holes 111a and the second mounting holes 111b. The fastener 111c corresponds to the second mounting hole 111b, and in this embodiment the fastener 111c includes two sets of bolts.

The offset of the plurality of branch fork portions 40 by the first offset mechanism 111 will be described. The position of the horizontal member 32 with respect to the second vertical wall 56a can be changed by screwing it into the second mounting hole 111b. For example, as shown in the middle diagram of FIG. 9A, when the fastener 111c is inserted through the first mounting hole 111a arranged in the central portion among the plurality of first mounting holes 111a, the central portion of the horizontal member 32 and the second mounting hole 111a are inserted. The horizontal member 32 is arranged at the center in the width direction of the traveling vehicle 2 so as to coincide with the center of the vertical wall 56a.

As shown in the upper diagram of FIG. 9A, when the fastener 111c is inserted into the first mounting hole 111a arranged on the other widthwise side (right side) of the plurality of first mounting holes 111a, the right side of the horizontal member 32 is inserted. and the central portion of the second vertical wall 56 a coincide, and the horizontal member 32 is offset to one side (left side) in the width direction of the traveling vehicle 2 .
9A, when the fastener 111c is inserted into the first mounting hole 111a arranged on one side (left side) of the plurality of first mounting holes 111a in the width direction, the horizontal member 32 is The left side and the central portion of the second vertical wall 56 a are aligned, and the horizontal member 32 is arranged offset to the other side (right side) in the width direction of the traveling vehicle 2 . Note that when the horizontal member 32 is positioned at the center in the width direction of the traveling vehicle 2 (the middle diagram in FIG. 9A), when the horizontal member 32 is offset to the left side of the traveling vehicle 2 (the upper diagram in FIG. 9A). ) and the case where the horizontal member 32 is offset to the right side of the traveling vehicle 2 (lower diagram in FIG. 9A) has been described as an example, but in this embodiment, 16 first mounting holes 111a are formed in the width direction. Therefore, in the first offset mechanism 111, the positions of the plurality of branch fork portions 40 in the width direction with respect to the traveling vehicle 2 can be switched in 15 stages.

Thereby, the first offset mechanism 111 changes the position of the horizontal member 32 with respect to the second vertical wall 56 a to offset the plurality of branch fork portions 40 in the width direction with respect to the traveling vehicle 2 . According to the above configuration, even when the branches and leaves E are scattered in a place where the traveling vehicle 2 cannot travel, such as under a tree with low branches, the plurality of branch and leaf fork portions 40 are offset in the width direction so that the branches and leaves of the tree are scattered. Branches and leaves E scattered downward can be collected. Thereby, the efficiency of the foliage collection work by the foliage collection device 30A can be improved.

In the above-described embodiment, the number of the plurality of first mounting holes 111a is greater than the number of the plurality of second mounting holes 111b. is offset in the width direction, the plurality of second mounting holes 111b may be formed more than the plurality of first mounting holes 111a, and the fastener 111c It may be inserted through the plurality of second mounting holes 111b and screwed into the first mounting holes 111a. Further, the offset mechanism 101 only needs to be able to offset the plurality of leaf fork portions 40 in the width direction. The configuration of the mechanism 101 is not limited to the configuration described above.

For example, as shown in FIG. 9B, the offset mechanism 101 includes a slide rail 112a extending in the width direction, a slide portion 112b that can slide with respect to the slide rail 112a, and a restrictor 112c that restricts the sliding of the slide portion 112b. and includes For convenience of description, the offset mechanism 101 shown in FIG. 9B will be described below as the second offset mechanism 112 .
The slide rail 112a is attached to either one side of the horizontal member 32 or the second vertical wall 56a, and is attached to the rear side of the horizontal member 32 in this embodiment. The slide portion 112b is attached to the other side of the horizontal member 32 and the second vertical wall 56a, and in this embodiment, is formed integrally with the second vertical wall 56a on the front side of the second vertical wall 56a. By operating a switch or the like, the restrictor 112c can be switched between a state of restricting sliding between the slide rail 112a and the slide portion 112b and a release state of releasing the restriction.

The restrictor 112c is a clutch mechanism for fixing the slide rail 112a and the slide portion 112b, a fastening member such as a bolt, or a pin-shaped member that can be inserted into and removed from holes formed in the slide rail 112a and the slide portion 112b. It may be a member, and existing technology can be applied.
For example, as shown in the middle diagram of FIG. 9B, when the slide portion 112b is positioned at the widthwise central portion of the slide rail 112a, the restrictor 112c is switched to the released state, and the horizontal member 32 is moved along the slide rail 112a. to one side (left side) in the width direction, the second offset mechanism 112 offsets the plurality of leaf fork portions 40 to the left side with respect to the traveling vehicle 2 so as to transition to the upper diagram of FIG. 9B. be able to.

Further, for example, as shown in the middle diagram of FIG. 9B, when the slide portion 112b is positioned at the center portion in the width direction of the slide rail 112a, the restrictor 112c is switched to the released state, and the slide rail 112a is laterally moved along the slide rail 112a. By moving the member 32 to the other side (right side) in the width direction, the second offset mechanism 112 offsets the plurality of branch fork portions 40 to the right side with respect to the traveling vehicle 2 so as to transition to the lower diagram of FIG. 9B. can be made

In the above-described embodiment, when the restrictor 112c is in the released state, the slide portion 112b can slide steplessly on the slide rail 112a. It may be a configuration. In the above-described embodiment, the second offset mechanism 112 is configured by a member that connects the horizontal member 32 and the second vertical wall 56a. , and may be composed of a member that connects the pair of vertical members 33 and the first support member 34 and the second support member 35 .

Specifically, for example, as shown in FIG. 9C, the offset mechanism 101 has an auxiliary vertical member 113a arranged between the pair of vertical members 33 and an auxiliary mounting portion 113b. Hereinafter, for convenience of explanation, the offset mechanism 101 shown in FIG. 9C will be explained as the third offset mechanism 113 .
The auxiliary vertical member 113a is a member that forms the base end side (rear side) to the tip end side (front side) of the frame portion 31 and extends in the front-rear direction. In this embodiment, the frame portion 31 has one auxiliary vertical member 113a, which is arranged in the widthwise central portion of the horizontal member 32 and extends forward from the lower side of the horizontal member 32. .

The auxiliary attachment portion 113b is a member that supports the first support member 34 and the second support member 35 together with the attachment portion 36 so that the first support member 34 and the second support member 35 are separated from each other in the front-rear direction and the first support member 34 is positioned forward of the second support member 35. is. Further, the auxiliary mounting portion 113b mounts the first support member 34 and the second support member 35 to the auxiliary vertical member 113a. The auxiliary mounting portion 113b is attached to the auxiliary vertical member 113
a, and a sixth bracket 36F attached to the rear side of the auxiliary vertical member 113a. The fifth bracket 36E corresponds to the first bracket 36A and the second bracket 36B in the front-rear direction, and the sixth bracket 36F corresponds to the third bracket 36C and the fourth bracket 36D in the front-rear direction.

The auxiliary mounting portion 113b, like the mounting portion 36, is a member formed by bending a steel plate or the like, and has a substantially V shape with an obtuse inner angle when viewed from the side. The auxiliary attachment portion 113b is fastened together with the first support member 34 or the second support member 35 by fastening members such as bolts and nuts for attaching the plurality of leaf fork portions 40 to the first support member 34 and the second support member 35. . Regarding the auxiliary mounting portion 113b, the description of the configuration similar to that of the mounting portion 36 will be omitted.

As shown in FIG. 9C, by selecting the attachment portion 36 and the auxiliary attachment portion 113b that support the first support member 34 and the second support member 35, and the attachment positions thereof, the pair of vertical members 33 and the first support member 34 and the second support member 35 can be changed. For example, as shown in the middle diagram of FIG. 9C, if the first support member 34 and the second support member 35 are supported by all of the first bracket 36A to the sixth bracket 36F, the width direction center of the traveling vehicle 2 and the second support member 35 are supported. The central portions of the first support member 34 and the second support member 35 are aligned with each other, and a plurality of branch fork portions 40 are arranged in the central portion of the traveling vehicle 2 in the width direction.

As shown in the upper diagram of FIG. 9C, when the right side of the first support member 34 and the right side of the second support member 35 are supported by the first bracket 36A, the third bracket 36C, the fifth bracket 36E, and the sixth bracket 36F, , the center in the width direction of the traveling vehicle 2 and the right side of the first supporting member 34 and the second supporting member 35 are aligned, and the left end in the width direction of the traveling vehicle 2 and the first supporting member 34 and the second supporting member 35 are aligned. , the first support member 34 and the second support member 35 are offset to one side (left side) in the width direction of the traveling vehicle 2 . As a result, the plurality of branch fork portions 40 are offset to the left side of the traveling vehicle 2 .

As shown in the lower diagram of FIG. 9C, when the left side of the first support member 34 and the left side of the second support member 35 are supported by the second bracket 36B, the fourth bracket 36D, the fifth bracket 36E, and the sixth bracket 36F, the traveling The center of the vehicle 2 in the width direction and the left sides of the first support member 34 and the second support member 35 are aligned, and the right end of the vehicle 2 in the width direction and the center of the first support member 34 and the second support member 35 are aligned. , the first supporting member 34 and the second supporting member 35 are offset to the other side (right side) in the width direction of the traveling vehicle 2 . As a result, the plurality of leaf fork portions 40 are offset to the right side of the traveling vehicle 2 and arranged.

Note that when the plurality of branch fork portions 40 are positioned at the center portion in the width direction of the traveling vehicle 2 (middle diagram in FIG. 9C), when the plurality of branch fork portions 40 are offset to the left side of the traveling vehicle 2 (upper diagram in FIG. 9C) and the case where the plurality of branch fork portions 40 are offset to the right side of the traveling vehicle 2 (lower diagram in FIG. 9C) have been described as examples, but in the present embodiment, the first support member 34 and the second support member 35 are provided with 16 fastening members for fixing the plurality of branch fork portions 40, respectively. can be switched in 16 steps.

The offset mechanism 101 only needs to be able to offset the plurality of leaf fork portions 40 in the width direction, and the offset mechanism 101 includes a front rail 114a, The configuration may include the rear rail 114b, the front slider 114c, the rear slider 114d, and the restrictor 114e. Hereinafter, for convenience of explanation, the offset mechanism 101 shown in FIG. 9D will be explained as the fourth offset mechanism 114 .

As shown in FIG. 9D, the front rail 114a is a rail member that extends in the width direction, and includes the front mounting portion 36 (first bracket 36A and second bracket 36B) and the front auxiliary mounting portion 113b ( fifth bracket 36E). As shown in FIG. 9D, in this embodiment, the front rail 114a is formed integrally with the first bracket 36A, the second bracket 36B, and the fifth bracket 36E.

The rear rail 114b is a rail member arranged to extend in the width direction, and is attached to the mounting portion 3 on the rear side.
6 (the third bracket 36C and the fourth bracket 36D) and the rear auxiliary mounting portion 113b (the sixth bracket 36F). As shown in FIG. 9D, in this embodiment, the rear rail 114b is formed integrally with the third bracket 36C, fourth bracket 36D, and sixth bracket 36F.

The front slider 114c is slidable with respect to the front rail 114a, and is a member elongated in the width direction attached over the front side of the pair of vertical members 33 and the front side of the auxiliary vertical member 113a. The rear slider 114d is slidable with respect to the rear rail 114b, and is a member elongated in the width direction attached over the rear side of the pair of vertical members 33 and the rear side of the auxiliary vertical member 113a. is.

In the present embodiment, the front slider 114c and the rear slider 114d are members elongated in the width direction, but it is sufficient if they are slidable on the front rail 114a and the rear rail 114b, respectively. is not limited to the configuration described above. For example, the fourth offset mechanism 114 may have a plurality of front sliders 114c and rear sliders 114d, which may be provided on a pair of vertical members 33 and auxiliary vertical members 113a, respectively. In such a case, the front sliders 114c provided on the front side of the pair of vertical members 33 and on the front side of the auxiliary vertical member 113a are aligned in the front-rear direction, and the rear side of the pair of vertical members 33 and the front slider 114c on the front side of the auxiliary vertical member 113a are aligned. The rear sliders 114d provided on the rear side are aligned in the front-rear direction.

The restrictor 114e operates a switch or the like to restrict at least one of the sliding between the front slider 114c and the front rail 114a and the sliding between the rear slider 114d and the rear rail 114b. It is possible to switch between a released state and a released state. The restrictor 114e is provided, for example, on the auxiliary vertical member 113a. Note that the restrictor 114e may be, for example, a clutch mechanism that fixes the front slider 114c and the front rail 114a and/or the rear slider 114d and the rear rail 114b, a fastening member such as a bolt, or a pin-shaped member. Good, existing technology can be applied.

Further, as shown in FIG. 9D, in this modification, the frame portion 31 includes a connector 114f that connects the first support member 34 and the second support member 35, and the first support member 34 and the second support member 35 are connected to each other. are united. Specifically, the connector 114f indirectly connects the first support member 34 and the second support member 35 by connecting the front rail 114a and the rear rail 114b. In the present embodiment, the connector 114f indirectly connects the first support member 34 and the second support member 35, but it is configured to directly connect the first support member 34 and the second support member 35. may be

As shown in FIG. 9D, by sliding the front rail 114a relative to the front slider 114c and sliding the rear rail 114b relative to the rear slider 114d, the pair of vertical members 33 and the first support member are moved. 34 and the second support member 35 can be changed. As shown in the middle diagram of FIG. 9D, when the central portion of the first support member 34 and the central portion of the second support member 35 are positioned at the central portion in the width direction of the traveling vehicle 2, the restrictor 114e is released. , and the first support member 34 and the second support member 35 are moved to one side (left side) in the width direction along the front rail 114a and the rear rail 114b, so as to transition to the upper diagram of FIG. 9D. , the offset mechanism 101 can offset the plurality of leaf fork portions 40 to the left with respect to the traveling vehicle 2 .

Further, for example, as shown in the middle diagram of FIG. 9D, when the slide portion 112b is positioned at the center portion in the width direction of the slide rail 112a, the restrictor 114e is switched to the released state, and the front rail 114a and the rear rail 114a are disengaged. By moving the first support member 34 and the second support member 35 to the other side (right side) in the width direction along the line 114b, the offset mechanism 101 shifts to the lower diagram of FIG. 9D. 40 can be offset to the right with respect to the running vehicle 2 .

As shown in FIG. 10A, the modification mechanism 100 may have a fixture 121 to which an extension collector 125 can be attached and detached instead of or in addition to the offset mechanism 101 described above. The extension collecting portion 125 is a structure that forms a branch/leaf collecting portion (third rake portion) 125a that collects the branches E together with the first rake portion 40a of the front fork 40F and the second rake portion 40b of the rear fork 40R. The collecting extension 125 is shaped similar to the frame 31 and the plurality of leaf forks 40 . Specifically, the extension collector 125 includes an extension frame 126 and a plurality of extension forks 129 . The extension frame 126 is a member that supports the extension fork portion 129 and has a third support member 127 and a fourth support member 128 .

As shown in FIG. 10A, the third support member 127 and the fourth support member 128 are portions to which a plurality of extension fork portions 129 are attached, and are spaced apart in the front-rear direction. The third support member 127 and the fourth support member 128 are long plate-shaped members extending in the width direction.
The plurality of extension fork portions 129 are portions that rake up the branches and leaves E of the field G together with the plurality of branch fork portions 40 as the traveling vehicle 2 moves forward. As shown in FIGS. 10A and 10B, the plurality of extension fork portions 129 are relatively thin elongated members, and in the present embodiment, are made of round pipes having a circular cross section. Further, the plurality of extension fork portions 129 are members common to the plurality of leaf fork portions 40 . The plurality of extension fork portions 129 are arranged apart from each other in the width direction and extend downward from the third support member 127 and the fourth support member 128 . Specifically, the plurality of extension fork portions 129 are supported by the third support member 127 or the fourth support member 128, and are inclined from the third support member 127 or the fourth support member 128 toward the traveling vehicle 2. . Specifically, the plurality of extension fork portions 129 extend downward along the plate surface of the third support member 127 or the fourth support member 128, and move rearward from the third support member 127 or the fourth support member 128. It slopes downwards and backwards. The tip side (lower side) of the extension fork portion 129 is bent downward and is substantially perpendicular to the upper surface of the field G. As shown in FIG.

As shown in FIG. 10A, the fixture 121 is a bracket member to which the extension collector 125 is attached. The fixture 121 is attached to at least one side (left side) in the width direction of the first support member 34 and the second support member 35 and the other side (right side) in the width direction of the first support member 34 and the second support member 35. attached to the The fixture 121 is formed by bending a steel plate or the like, for example.

The fixture 121 (first fixture 121L) attached to the left side of the first support member 34 and the second support member 35 connects the left end of the first support member 34 and the left end of the second support member 35, for example. The extension fork portion 129 can be attached and detached via fastening members such as bolts. In the present embodiment, the first fixture 121L is configured by the leftmost fastening member among the fastening members such as bolts and nuts that attach the plurality of leaf fork portions 40 to the first support member 34 and the second support member 35. It is fastened together with the support member 34 or the second support member 35 .

The fixture 121 (second fixture 121R) attached to the right side of the first support member 34 and the second support member 35 connects the right end of the first support member 34 and the right end of the second support member 35, for example. The extension fork portion 129 can be attached and detached via fastening members such as bolts. In the present embodiment, the second fixture 121R is configured such that the rightmost fastening member among the fastening members such as bolts and nuts for attaching the plurality of leaf fork portions 40 to the first support member 34 and the second support member 35 is used for the first attachment member 121R. It is fastened together with the support member 34 or the second support member 35 .

The middle drawing in FIG. 10A shows a state in which the extension fork portion 129 is not attached to both the first fixture 121L and the second fixture 121R. Here, as shown in the upper diagram of FIG. 10A, when the extension fork portion 129 is attached to the first attachment 121L and the extension fork portion 129 is not attached to the second attachment 121R, the first rake portion 40a and the second rake In addition to the portion 40b, a third rake portion 125a can be added on the left side to extend the widthwise length W3 of the foliage collector 30A. As a result, the range in which the foliage collecting device 30A can collect the foliage E can be projected to the left side of the traveling vehicle 2 .

10A, when the extension fork portion 129 is attached to the second attachment member 121R and the extension fork portion 129 is not attached to the first attachment member 121L, the first rake portion 40a and the second rake portion 40b In addition, a third rake portion 125a can be added on the right side to extend the widthwise length W3 of the foliage collector 30A. As a result, the range in which the foliage collecting device 30A can collect the foliage E can be projected to the right side of the traveling vehicle 2 .

Note that FIG. 10A shows a case where the extension fork portion 129 is attached to one of the first attachment tool 121L and the second attachment tool 121R, and the extension fork part 129 is not attached to the other, but FIG. 10B , the extension fork portion 129 may be attached to both the first fixture 121L and the second fixture 121R. Thereby, in addition to the first rake part 40a and the second rake part 40b, the third rake part 125a can be added on both sides, and the widthwise length W3 of the foliage collector 30A can be extended. Therefore, the range in which the foliage collecting device 30A can collect the foliage E can be projected to both sides of the traveling vehicle 2 .

10A and 10B, the ends of the extension fork portion 129 opposite to the plurality of leaf fork portions 40 are the ends of the third support member 127 and the end portions of the fourth support member 128. A bridging member 125b may be provided to connect the .
Also, in the above example, the fixtures 121 are attached to the left side of the first support member 34 and the second support member 35 and to the right side of the first support member 34 and the second support member 35; 125 can be attached to either the left side or the right side. The configuration may be such that

In the above-described example, the attachment tool 121 is detachably attached to the extension fork portion 129 via a fastening member. It may be fixed by a fixture made of wire or the like, and the mounting method is not limited to the method described above.
Further, in the above-described embodiment, the changing mechanism 100 can change the length of the branch/leaf collecting device 30A in the width direction (one side of the plurality of branch/fork portions 40 in the width direction) by attaching and detaching the extension collecting portion 125 using the attachment 121. to the other side), but the changing mechanism 100 only needs to change the length from one side to the other side in the width direction of the plurality of branch fork portions 40, and its configuration is not limited to the above configuration. . For example, as shown in FIG. 11A, the changing mechanism 100 may have a switching mechanism 130 in place of or in addition to the fixture 121 .

As shown in FIG. 11A, the switching mechanism 130 slides the first support member 34 to one side in the width direction with respect to the mounting bracket 51A, and slides the second support member 35 to the other side in the width direction with respect to the mounting bracket 51A. side to change the length from one side to the other side in the width direction of the plurality of branch and leaf fork portions 40 . As shown in FIG. 11A, the switching mechanism 130 has a front rail 114a, a rear rail 114b, a front slider 114c, a rear slider 114d, and a restrictor 112c, similar to the fourth offset mechanism 114 shown in FIG. 9D. ing. Hereinafter, description of the same configuration as the fourth offset mechanism 114 will be omitted. In addition, as shown in FIG. 11A, the first support member 34 and the second support member 35 are not connected, and the first support member 34 and the second support member 35 slide independently. It is possible. That is, as shown in FIG. 11A, by sliding the front rail 114a with respect to the front slider 114c and sliding the rear rail 114b with respect to the rear slider 114d, the pair of vertical members 33 and the first Each position of the support member 34 and the second support member 35 can be changed.

For example, as shown in the middle diagram of FIG. 11A, when the center portion of the first support member 34 and the center portion of the second support member 35 are positioned at the center portion in the width direction of the traveling vehicle 2, the upper portion of FIG. As shown in the figure, by switching the restrictor 112c to the released state and moving the first support member 34 to one side (left side) in the width direction along the front rail 114a, the first rake portion 40a is moved leftward. It is possible to extend the length W3 in the width direction of the foliage collecting device 30A. As a result, the range in which the foliage collecting device 30A can collect the foliage E can be projected to the left side of the traveling vehicle 2 . 11A, the first support member 34 is moved leftward, but as shown in the upper view of FIG. 11B, the second support member 35 is moved leftward along the rear rail 114b. By moving the second rake portion 40b to the left, the length W3 in the width direction of the branch/leaf collecting device 30A may be extended.

On the other hand, as shown in the lower diagram of FIG. 11A, the restricting member 112c is switched to the released state, and the first support member 34 is moved to the other side (right side) in the width direction along the front rail 114a. The rake portion 40a can be moved, and the length W3 in the width direction of the foliage collector 30A can be extended. As a result, the range in which the foliage collecting device 30A can collect the foliage E can be projected to the right side of the traveling vehicle 2 . 11A, the first supporting member 34 is moved to the right, but as shown in the lower diagram of FIG. The second rake portion 40b may be moved to the right to extend the widthwise length W3 of the branch/leaf collector 30A.

11A shows the case where the first support member 34 is moved among the first support member 34 and the second support member 35, but the first support member 34 and the second support member 35 Both may be moved in directions away from each other. For example, as shown in the middle diagram of FIG. 11B, the restrictor 112c is switched to the released state, the first support member 34 is moved to one side (left side) in the width direction along the front rail 114a, and is moved to the rear rail 114b. The second support member 35 is moved to the other side (right side) in the width direction. As a result, the first rake portion 40a and the second rake portion 40b can be arranged side by side in the width direction, and the length W3 in the width direction of the foliage collector 30A can be extended. Therefore, the range in which the foliage collecting device 30A can collect the foliage E can be projected to both sides of the traveling vehicle 2 . 11B, the first support member 34 is moved to the left and the second support member 35 is moved to the right, but the first support member 34 is moved to the right and the second support member 35 may be moved to the left to extend the widthwise length W3 of the foliage collector 30A.

As shown in FIG. 12, the changing mechanism 100 may have a rotating portion 131 instead of or in addition to the offset mechanism 101, the fixture 121, and the switching mechanism 130 described above. The rotating portion 131 is a structure that rotates the frame portion 31 with respect to the traveling vehicle 2 around a rotation axis extending in the vertical direction. The rotating portion 131 rotatably connects the frame portion 31 and the lifting device 50A, for example, and in this embodiment, connects the upper portion of the horizontal member 32 and the front surface of the second vertical wall 56a. The rotating portion 131 has a drive motor 132 and a gear case 133 . The drive motor 132 is a device that generates a driving force from supplied electric power. In the present embodiment, the drive motor 132 is a stepping motor, and rotates a rotating shaft (not shown) with electric power supplied from a battery (not shown) provided in the traveling vehicle 2 . The driving motor 132 is operated by the operating tool 75 . Specifically, the drive motor 132 is connected to the control device 76 , and the control device 76 changes the pulse signal to be input to the drive motor 132 based on the signal input from the operation tool 75 so that the drive motor 132 132 control.

The gear case 133 receives power transmitted from the rotating shaft of the drive motor 132, and changes the speed of the transmitted power. As shown in FIG. 12, the gear case 133 is arranged in the widthwise central portion of the lifting device 50A. The gear case 133 has a plurality of gears, a pivot shaft that pivots the gears, and an output shaft. The plurality of gears include bevel gears, for example, and perform speed change and transmission of power input from the rotary shaft of the drive motor 132 . Specifically, the plurality of gears converts the power input from the rotation shaft into power around the rotation axis in the vertical direction. The output shaft is arranged in a vertical direction and is driven by power converted by a plurality of gears. The output shaft is connected with the upper portion of the cross member 32 .

That is, for example, when the operator OP operates the operation tool 75 and the driving motor 132 rotates forward, the driving force of the driving motor 132 is transmitted to the output shaft via a plurality of gears. As shown in the figure, the output shaft rotates clockwise in plan view. As a result, the horizontal member 32 rotates together with the output shaft and rotates clockwise about the rotation axis in plan view.
On the other hand, when the operator OP operates the operation tool 75 and the driving motor 132 rotates in the reverse direction, the driving force of the driving motor 132 is transmitted to the output shaft via a plurality of gears, thereby causing the rotation shown in the lower diagram of FIG. , the output shaft rotates counterclockwise in plan view. As a result, the horizontal member 32 rotates together with the output shaft and rotates counterclockwise about the rotation axis in a plan view.

According to the above configuration, the operator OP operates the operation tool 75 to move the frame portion 31, that is, the first rake portion 40a and the second rake so that the plurality of branch fork portions 40 face the turning direction of the traveling vehicle 2. The direction in which the portion 40b faces can be rotated. As a result, the work implement 1 can reliably collect the branches and leaves E even when the traveling vehicle 2 is turning. Therefore, even in an environment where the range in which the traveling vehicle 2 can travel is limited, the efficiency of the foliage collection work by the foliage collection device 30A can be maintained.

In the above-described embodiment, the rotating portion 131 rotatably connects the frame portion 31 and the lifting device 50A. For example, the lifting device 50A and the mounting bracket 51A may be rotatably connected, or the mounting bracket 51A and the traveling vehicle 2 may be rotatably connected. The rotating portion 131 has a driving motor 132 and rotates the frame portion 31 with respect to the traveling vehicle 2 by the driving force output by the driving motor 132 . It is sufficient that the frame portion 31 can be rotated with respect to the traveling vehicle 2. For example, the operator OP may manually rotate the frame portion 31 with respect to the traveling vehicle 2, and the configuration is the above-described configuration. is not limited to

The work machine 1 described above includes a traveling vehicle 2, a driver's seat 4 provided in the traveling vehicle 2, an operation device arranged around the driver's seat 4 for operating the traveling vehicle 2, and a branch/leaf collecting device for collecting branches and leaves E. 30A, the branch and leaf collection device 30A includes a frame portion 31, a plurality of branch and leaf fork portions 40 arranged separately in the width direction and extending downward from the frame portion 31, and attached to the traveling vehicle 2. It has a mounting bracket 51A that supports the frame portion 31, and a changing mechanism 100 that can change the horizontal positional relationship between the branch/leaf collecting device 30A and the traveling vehicle 2. As shown in FIG. According to the above configuration, the branches and leaves can be collected without being influenced by the environment in which the branches and leaves are collected, such as the farm field G where the range in which the traveling vehicle 2 can travel is relatively narrow or wide, and the branches and leaves E are scattered in a deep position. The device 30A can flexibly perform foliage collection work.

The change mechanism 100 also has an offset mechanism 101 that offsets the plurality of branch fork portions 40 in the width direction with respect to the traveling vehicle 2 . According to the above configuration, even when the branches and leaves E are scattered in a place where the traveling vehicle 2 cannot travel, the branches and leaves E can be collected by offsetting the plurality of branch forks 40 in the width direction. Thereby, the efficiency of the foliage collection work by the foliage collection device 30A can be improved.

In addition, the changing mechanism 100 includes an extension collecting portion 125 having an extension frame 126 and a plurality of extension fork portions 129 arranged separately in the width direction and extending downward from the extension frame 126 . A detachable fixture 121 is provided on one side or the other side in the width direction of the housing. According to the above configuration, even when the branches and leaves E are scattered over a relatively wide area, the branches and leaves can be collected in a short time. Further, when the branches and leaves E are scattered in a relatively narrow range, the weight of the branch and leaf collection device 30A can be reduced by removing the extension collecting part 125, and the handling of the working machine 1 can be improved.

The frame portion 31 also includes a first support member 34 that supports the plurality of branch fork portions 40 while being separated from each other in the width direction, and a plurality of branches and leaves of the plurality of branch fork portions 40 that are separate from the first support member 34 . The changing mechanism 100 includes a first support member 34 that supports the fork portion 40 in a spaced apart manner in the width direction and a second support member 35 that is arranged in a spaced apart manner in the front-rear direction of the traveling vehicle 2 . The support member 34 is slid to one side in the width direction with respect to the mounting bracket 51A, the second support member 35 is slid to the other side in the width direction with respect to the mounting bracket 51A, and the width of the plurality of branch fork portions 40 is adjusted. It has a switching mechanism 130 that changes the length from one side of the direction to the other side. According to the above configuration, it is possible to easily change the length in the width direction of the plurality of branch forks 40 even during the branch collecting work. As a result, the branches and leaves E can be accurately collected regardless of whether the branches and leaves E are scattered over a relatively wide range or when the branches and leaves E are scattered within a relatively narrow range.

The changing mechanism 100 also has a rotating portion 131 that rotates the frame portion 31 about a rotation axis that extends vertically with respect to the traveling vehicle 2 . According to the above configuration, the frame portion 31 can be rotated so that the plurality of branch fork portions 40 face the turning direction of the traveling vehicle 2 . As a result, the working machine 1 can reliably collect the branches and leaves E even when the traveling vehicle 2 is turning. Therefore, even in an environment where the range in which the traveling vehicle 2 can travel is limited, the efficiency of the foliage collection work by the foliage collection device 30A can be maintained.

In addition, the foliage collecting device 30A has a lifting device 50A that supports the frame portion 31 so as to be able to move up and down with respect to the mounting bracket 51A. According to the above configuration, the lifting device 50A lowers the frame portion 31, and the plurality of branch fork portions 40 are in a work state in which the collection work is performed. It can be switched to a non-working state in which collection work is not performed. As a result, it is possible to prevent the plurality of branch and leaf fork portions 40 from coming into contact with obstacles in the field G in the non-working state.

The branch/leaf collecting device 30A includes a frame portion 31, a plurality of branch/leaf fork portions 40 arranged separately in the width direction and extending downward from the frame portion 31, and a frame portion attached to the traveling vehicle 2. 31, and a change mechanism 100 that connects the frame portion 31 and the mounting bracket 51A and can change the horizontal positional relationship between the branch/leaf collecting device 30A and the traveling vehicle 2. . According to the above configuration, the branches and leaves can be collected without being influenced by the environment in which the branches and leaves are collected, such as the farm field G where the range in which the traveling vehicle 2 can travel is relatively narrow or wide, and the branches and leaves E are scattered in a deep position. The device 30A can flexibly perform foliage collection work.

Although the present invention has been described above, it should be considered that the embodiments disclosed this time are illustrative in all respects and not restrictive. The scope of the present invention is indicated by the scope of the claims rather than the above description, and is intended to include all modifications within the scope and meaning equivalent to the scope of the claims.

REFERENCE SIGNS LIST 1 working machine 2 traveling vehicle 4 driver's seat 30A branch collector 31 frame 34 first support member 35 second support member 40 branch fork 50A lift device 51A mounting bracket 100 change mechanism 101 offset mechanism 121 fixture 125 extension collector 126 Extension frame 129 Extension fork portion 130 Switching mechanism 131 Rotating portion E Branches and leaves

Claims (7)

running vehicle and
a driver's seat provided in the traveling vehicle;
an operating device arranged around the driver's seat for operating the traveling vehicle;
a foliage collecting device for collecting foliage as the traveling vehicle advances ;
with
The foliage collecting device is
a frame part;
a plurality of branch fork portions arranged separately in the width direction and extending downward from the frame portion;
a mounting bracket attached to the traveling vehicle and supporting the frame portion;
a changing mechanism capable of changing the positional relationship between the plurality of branch forks and the traveling vehicle in the longitudinal direction and/or the width direction in a state where the plurality of branch forks can collect branches;
has
The frame portion
a first support member that supports the plurality of branch fork portions while being separated from each other in the width direction;
Among the plurality of branch fork portions, the plurality of branch fork portions separate from the first support member are supported in the width direction and separated from the first support member in the longitudinal direction of the traveling vehicle. a second support member disposed on the
has
The change mechanism is
The first supporting member is slid to one side in the width direction with respect to the mounting bracket, the second supporting member is slid to the other side in the width direction with respect to the mounting bracket, and the plurality of leaf fork portions A work machine having a switching mechanism that changes the length from one side to the other side in the width direction of the work machine. running vehicle and
a driver's seat provided in the traveling vehicle;
an operating device arranged around the driver's seat for operating the traveling vehicle;
a foliage collecting device for collecting foliage as the traveling vehicle advances;
with
The foliage collecting device is
a frame part;
a plurality of branch fork portions arranged separately in the width direction and extending downward from the frame portion;
a mounting bracket attached to the traveling vehicle and supporting the frame portion;
a changing mechanism capable of changing the positional relationship between the plurality of branch forks and the traveling vehicle in the longitudinal direction and/or the width direction in a state in which the plurality of branch forks can collect branches;
has
The change mechanism is
A working machine having a rotating portion that rotates the frame portion around the rotation axis extending in the vertical direction with respect to the mounting bracket . 2. The change mechanism has an offset mechanism for sliding the frame portion in the width direction with respect to the mounting bracket and offsetting the plurality of branch fork portions in the width direction with respect to the traveling vehicle. Or the working machine according to 2 . The frame portion
a first support member that supports the plurality of branch fork portions while being separated from each other in the width direction;
Of the plurality of branch fork portions, the plurality of branch fork portions separate from the first support member are supported while separated in the width direction and separated from the first support member in the longitudinal direction of the traveling vehicle. a second support member disposed on the
has
The change mechanism is
The first support member is slid to one side in the width direction with respect to the mounting bracket, the second support member is slid to the other side in the width direction with respect to the mounting bracket, and the plurality of leaf forks 3. The working machine according to claim 2 , further comprising a switching mechanism for changing the length from one side to the other side in the width direction of the blade. The change mechanism is
an extension collecting portion having an extension frame and a plurality of extension fork portions spaced apart in the width direction and extending downward from the extension frame on one or the other width direction side of the frame portion; The work machine according to any one of claims 1 to 4 , which has a detachable fixture. The change mechanism is
2. The working machine according to claim 1 , further comprising a rotating portion that rotates the frame portion about a rotation axis that extends vertically with respect to the mounting bracket. The working machine according to any one of claims 1 to 6 , wherein the foliage collecting device has an elevating device that supports the frame portion to be elevable with respect to the mounting bracket.

Images